Priming device



' Aug. 15, 1939 W. B. SMITH PRIMING DEVICE Filed Nov. 26, 1937 9 8 24 I,21 3 22 Z 18 34 i 12 onion Patented Aug. 15, 1939 2,169,541

UNITED STATES PATENT OFFICE PRIIVHNG DEVICE William B. Smith,Washington, D. C.

Application November 26, 1937, Serial No. 176,762

12 Claims. (Cl. 18212) This invention relates to flow controlleddestantially fill cross-sectionally the cylindrical vices wherein flowafiects a valved outlet conbore 8. The tubular portions 2| and 22 areheld trolling flow to a branch off of the main flow against the disk 23by means of a cap piece 24 passage. The device of the invention isparticuthreaded on the extremity of stem ll, the cap larly adapted touse as a drain trap primer alpiece being of non-round cross section anden- 7 5 though not confined to such application. An gaged in a matingopening in a stirrup member object of the invention is to provide adevice oi 25 whose outturned upper extremities 26 and 21 the charactermentioned which is very eflicient in are engaged in outwardly openrecesses 28 and operation and yet comprises a very small number29jformed in the interior of neck 9, the stirrup of simple parts so asto be capable of most ecobeing held in place by means of the overlyingtop 10 nomical manufacture. As illustrative of the inof cap [0. ventionI have shown, by way of example, two The oblique arrangement of disc 23is preferpractical embodiments thereof in the accomably such that itsupper edge is at substantially panying drawing with reference to which Ishall the top of the bore of tubular member 6, here particularlydescribe the invention. In the considered to be the inlet port, whengasket 15 drawing, rests on seat M in the manner shown in Figures Figurel is an axial section of one embodiment 1 and 2. The disc cannot turn onthe axis of of the invention; stem l'l since it and the stem arerestrained by 7 Figure 2 is a partial section substantially on reason ofthe engagement of the non-round cap 20 the line 2-2 of Figure 1, member24 in the mating opening'in stirrup 25. 20

Figure 3 shows in perspective a guide member The opening in the stirrupmay be rectangular appearing also in Figures 1 and 2; and as shown inFigure 3. The stem I1 and associ- Figure 4 is an axial section ofanother embodiated parts are freely reciprocable, normally takment ofthe invention. ing the position in Figures 1 and 2 and return- Referringfirst to Figures 1 to 3, reference ing to that position under theinfluence of gravity 25 numeral 5 designates generally a body with 00-when displaced therefrom. axial tubular extensions 6 and "I whichcommuni- It will be evident that flow to the right, Figure cate with acylindrical bore or cavity 8 having an 1, impinging against the obliquelower surface of axis intersecting the axis of the extensions at thedisc 23, will bodily lift the latter and there- 30 right angles. As hereshown the extensions are with the stem I! and gasket 20 so that flowwill 30 interiorly threaded so as to be readily connectible occurthrough bores l2 and I5 and so to the drain in a fluid supply line, asto a faucet. The cavity trap or other device to be primed. There ispref- 8 is extended into a neck 9 which is externally erably sufiicientclearance between the disc and threaded for engagement by a closure capIll. the Walls of bore 8 so that there will be no lifting Diametricallyopposite the neck 9 is a body exof washer 20 as the result of slightflow caused 35 tension ll provided with a relatively small central by aleaky washer. Atthe same time disc 23 bore [2 flared at l3 to aconcentric annular upserves as a centering guide, in conjunction withstanding rib l4 whose extremity is preferably the stirrup 25, for thestem ll, so that the latter rounded, as shown. Beyond the bore I2,extenwill always keep a susbtantially axial position sion II has anenlarged bore l5 Whose extremity relative to bore [2, thus insuringproper seating 40 may be interiorly threaded, as shown, for con- 0f thewasher 20 on the seat 14. nection with a line leading to a drain trap orIt willbe apparent that the stem I1 and appurthe like. The walls of borel5 are desirably protenant parts may be turned 180 degrees from thevided with one or more vent openings as at l6 position shown in Figure 1so that extension in order to prevent siphon action. I may be the inletside of the device. 45

A spindle l1, one end of which is receivable in The arrangement shown inFigure 4 is generbore l2 in spaced relation to the Walls of the ally thesame as that just described. The main latter, is threaded at its otherend and engaged differences are that the body 30 is provided with a by anut I8 and a threaded cuplike member 19 conical cavity 3| whose axisintersects the axis of between which is interposedacompressible washtheflow passage and that instead of a disc a 50 er or gasket 20. conicalmember 32, secured to the valve stem 33,

superposed on member 19 and surrounding the is provided. The valve stem33, as above, car

stem H are tubular portions 2| and 22 whose adries a valve gasket ordisc 34 which cooperates jacent edges are on a similar bias and engagewith the conical upper upstanding extremity or a disk 23 which is ofelliptical shape so as to subrib 35 of a hollow plug 36 as a seat. Theplug 56 has a downwardly flared conical interior 35 which enables anyforeign matter to escape readily. The seat 35 quite closely surroundsthe valve stem, the clearance being only sufficient to permit anadequate flow when the gasket 34 lifts. There is a preferablysubstantially line contact between the gasket and seat, as shown.

There is no retaining nut below the gasket and the latter is heldinplace through screw engage- 'ment with the stemor it maybe cemented inthe superjacent cup member.

Threaded .on the body extension 3! is a tubular coupling member 38provided with an axially pierced and threaded-in plug 39 and one or morevent openings as at 40. The conical cavity 3|;i's

surmounted by a cylindrical portion 3H into.

which the conical member 32 may rise 'to-unseat the valve disc wheninfluenced by flow. in either direction through the flow passage.

valve body so mounted that gravity return is' impossible or uncertain,spring return means must be provided. 7

While I have shown and described two'emsediments of the invention by wayof example, it will be understood that I do not limit myself to detailsof form and arrangement except as in the following claims.

I claim:

1. A device of the a body having a flow passage therethrough and anoutlet communicating with said passage, a valve member for controllingsaid outlet, and means for actuating said valve member comprising abodily reciprocablezmember connected to the latter and having animpingement surface oblique to the lineof flow through said passage andtothe line of reciprocation of said reciprocable member. 7

2, A device according to claim 1 wherein the reciprocable member is inthe form of a disc.

3. A device according to claim 1 wherein the reciprocable member isconstituted by a disc, and wherein guide means is provided for holdingthe disc against rotation the disc being adjustable relative to saidguide means so as to be operatively affected by'ilow through saidpassage in either direction.

4. A device according to claim 1 wherein the reciprocable member is inthe form of a cone.

class describedcomprising,

5. A device of the class described comprising a body having a flowpassage therethrough, a

cavity intersecting said passage and an outlet at one end of saidcavity, a valve member for controlling said outlet, a reciprocable stemon which said valve member is fixed, and an actuating member fixed onsaid stem and disposed in said cavity, 'said actuating member having animpingement surface oblique to the line of flow throughsaid passage andto the line of reciprocation of said "stem. I Y

6. A device accordinglto claim 5 wherein the actuating member isconstituted by a disc, and "wherein guide means is provided for holdingthe disc against rotation.

,'7. A device according to claim 5 wherein the actuating member isconstituted by a disc, and

an outlet communicating with said passagesaid outlet being definedadjacent the passage by an annular upstanding rib and being outwardlyflared beyond the latter, a valve disc co-operable with said rib as aseat, and means operated upon flow throughsaid passage to unseat saiddisc.

10. A device of the class described comprising a body having a flowpassage therethrough and an outlet communicating with said passage, a

valve member for controlling said outlet,;a reciprocable stemon whichsaid valve member is fixed, an actuating member fixed on said stem andhaving. an impingement surface in the fiow passage, said surfacebeingoblique to the line of flow through said passage and tothe line ofre ciprocation of said stem, said stem having a nonround portion, and afixed guide member having an opening mating with said non-round portionwhereby to prevent rotation of said stem 11, Adevice according toIclaimldwherein the stem comprises. two tubular portions havingcomplementarily inclined adjacent ends between which the actuatingmember is clamped.

12. A device according to claim 10 wherein th body includes a capportion which retains the guide member in place.

' WILLIAM B. SMITH.

